Another thing my dad demonstrated to me a few weeks ago: you can grab a nettle by the base, move your hand upward, and as the nettle is sliding through your closed hand, it won't sting at all. This is because the sting cells are oriented perpendicular to the surface of the plant (or pointed slightly upward) so their pointy end doesn't come in contact with the skin at an angle where it would penetrate the skin.

The grippy skin on your hands is also often thick enough on its own to protect you, especially when callused, same for bare feet (so you can pinch them without getting stung).

The problem is all the thin skin (ankles, wrists, lower leg/arm) that you are very likely to graze them with.

is this a trap :D

their stalks also sting